Question

A physical quantity of the dimensions of length that can be formed out of c, G and \(\frac {e^2}{4πε_0}\) is
[c is velocity of light, G is universal constant of gravitation and e is charge]

• A. \(\frac {1}{c^2}[G\frac {e^2}{4πε_0}]^{\frac 12}\)
• B. \(c^2[G\frac {e^2}{4πε_0}]^{\frac 12}\)
• C. \(\frac {1}{c^2}[\frac {e^2}{G4πε_0}]^{\frac 12}\)
• D. \(\frac {1}{c}G\frac {e^2}{4πε_0}\)

Answer 1

The Correct Option is A

The correct option is (A): \(\frac {1}{c^2}[G\frac {e^2}{4πε_0}]^{\frac 12}\).